Drier.



PATENTED MAY 5, 1903.

J. WATERHOUSB.

DRIER.

APPLICATION FILED NOV. 26. 1902.

4 SHBETS SKEET 1.

no MODEL.

Jaizn 746%2'202206 v. L 3 s M 7 I W A TTORNE Y S.

J. WATERHOUSE.

DRIER.

APPLICATION FILED NOV. 26. 1902.

PATENTED MAY5, 1903.

.NO MODEL. 4 SHEETS-SHEET 2.

WITNESSES: go INVENTO PATENTED MAY 5, 1903;

J. WATEREOUSE.

DRIER.

APPLICATION FILED NOV. 26. 1902.

I a .1 I 4/ I 4 SHEETS-SHEET 3.

K0 MODEL.

INVENTOI? /izn Wafer/way? A TTORNE) No. "727,513. PATENTED .MAY 5, 1903.

J. WATERHOUSE.

DRIER.

APPLICATION IILBD NOV. 26. 1902. N0 MODEL. 4 SHEETS-SHEET 4.

62 I 4 7 E i 0 4 WITNESSES: INVENTIOH m NQRRYS PETERS co. PHQTOJITNQ, \VASHXNGTON. u a.

ATTOHNE rs.

iJNiTnn STATES Patented May 5, 1903.

JOHN WATERHOUSE, or NEW YORK, ti. Y.

DRIER.

SPECIFICATION forming part of Letters Patent No. 727,513, dated May 5, 1903.

Application filed November 26, 1902; Serial No. 132,893. (No model.)

To all whom, it Wmy concern:

Be it known that I, JOHN l/VATERHOUSE, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Drier, of which the following is a full, clear, and exact description.

This inventionrelates to improvements in machines for drying fruits, meats, sand, and

matter containing precious metals or gems,

and the object is to provide a machine of this character that will be simple in its construction and with which moisture and light dust may be quickly and effectually separated from the material. W a a I I will describe a drier embodying my invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate correspondingparts inall the figures. v

Figure 1 is an end view ofa drier embodying my invention. Fig. 2 is a sectional-end elevation thereof. Fig. 3 is a side elevation, partly in section. Fig. 4 is a longitudinal section of the inlet-pipe, showinga modification. Figs. 5 and 6 are sections on the line m 00 of Fig. 4, showing the regulating devices in different positions. Fig. 7 is a section on the line y y of Fig. 3. Fig. 8 is a sectional detail showing a screen-fastener employed, and Fig. 9 is an elevation showing the inlet illustrated in Fig. 4 as attached to the cylinder.

Referring to the drawings, 1 designates the drying cylinder, having an inlet-opening closed by a cover 2. This cylinder is mounted to rotate on rollers 3, and as here shown it is rotated slowly by means of a pinion 4, engaging with gear-teeth 5, attached to one end of the cylinder. The inlet-pipe 6 in the construction shown in Fig. 3 is designed to rotate in a suitable bearing. This inlet-pipe communicates with a hollow hub 7, from which branches 8 extend to connections with air-inlet pipes 9, extended-lengthwise through the cylinder. These pipes 9 are perforated, the perforations being at the side toward the wall of the cylinder.

It is designed that air shall be admitted only through the pipes or tubes 9 covered by the material in the drier, and therefore the inlet of air must be cut off from the other of said tubes-that is, the tubes above the material. For this purpose the branches 8 are provided with valves, upon the stems of which are crossed arms 10, designed to engage successively by tappets 11 12, adjustably mounted on a segment 13, supported on standards 14. These tappets are also reversible, so as to extend inward when necessary. This arrangement of valves and operating mechanism is not afeature of the present invention, asit is clearly shown and the operation fully disclosed in the patent granted to me May 14, 1902, No. 674,309.

Extended through: the cylinder at the sides of the air-inlet tubes or pipes 9 are discharge pipes 15, each discharge-pipe being provided with an inlet 16 at about its center, and each pipe is closed at one end by a removable plug 17,whi1e the other ends,which extend through a head of the cylinder, connect with T-joints '18, which are provided at the outer side with removable plugs 19, also at the upper side with removable plugs 20. By this arrangement the tubes or pipes may be easily cleaned after removing the plugs. Each pipe 15 is covered by a perforated plate or screen 21. These screens at one side have flanges 22 for engaging underneath keepers 23, which are fixed in the cylinder, and at the other side each screen has a flange 24, designed to be engaged by a hook-shaped locking device 25, which is mounted to rotate. The stem of this locking device 25 extends through the cylinder-wall, and secured to its outer end is a springyielding handle 26,attaohed to which is a pin 27 for engaging in a hole in the cylinder to hold the locking device in locked position. These screens are designed to prevent the material under treatment from being blown away, but permit moisture and dust, if any, to be carried off.

In Fig. 8 I have shown a screen 28 as covering an exit-pipe15 and the adjacent pipe 9, this screen being removably held in place, as above described. From the T-joints 18 branch pipes 29 extend to a hub 30, in which is arranged a regulating-valve consisting of a tube 31, having a slot 32 at one side, so that upon turning it it may be placed in communication with one or with two of the branches 29. For convenience in turning the valve I provide it with arms 33. The outer end of the tube-valve 31 extends into a sleeve 34, and'this sleeve receives the end of the discharge-pipe 35. The valve may be held as adjusted with relation to the sleeve 34 and to the discharge-pipe 35 by means of setscrews 36 36 In the operation after placing the material to be treated in the cylinder and securing the cover 2 inplace hot air is passed through the pipe 6 and discharges through the pipes 9, the valves of which are opened by the tappet mechanism before mentioned. The moisture or dust, if any, will be forced out through the pipes 15, the branches 29, and the dischargepipe 35.

Instead of the valve and tappet mechanism described in connection with Figs. 1 to 3 I may employat the inlet end a regulator consisting of a tube 37,1nounted to rotate in a hub 38, with which the branch pipes 8 communicate. This tube 37 is provided with an opening 39, and arranged to rotatein said tube is another tube 40, having an opening 41. The openings 39 and 41 are sufficiently large to provide for the entrance of air to three of the air-distributing pipes, or one or more of said distributing-pipes may be cut off by rotating the tubes one relatively to the other; but they cannot be rotated to a greater distance than that to embrace three pipes, because of a stop-plate 42, secured to one of the tubes. The tube 37 is provided with arms or handles 43, by means of which it may be turned, and the tube 40is provided with arms or handles 44, by means of which it may be rotated.

As clearly shown in Fig. 4, the end of the tube 40 near the cylinder is provided with a screw-plug 45, upon removing which the tube may be readily cleaned. The tube 40 communicates with a tubular section 46, the said tubular section being in communication with the inlet-pipe 47. This section 46 of the inlet is provided with a flexible joint consisting of disks 48, attached at their centers to the members of the section 46 and secured together at their outer edges. These disks 48 are made of copper, steel, or other material suitable for the purpose. The object of the flexible joint is to guard against strains and wear between the tubes 37 and 40 and the hub 38 that may be caused for Want of true alinement between the inlet-pipe 47 and the hub. The tube 37 and both ends of the sleeve 46 are provided with set-screws, by means of which the tubes 37 and 41, after adjustment, are made fast to the fixed pipe 47.

Any suitable means may be employed for indicating the degree of opening for the discharge of air through the openings 39 and 41.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A drier, comprising a rotary cylinder, air-distributing pipes arranged in said cylinder, discharge-pipes extended through the cylinder, each of said discharge-pipes having an opening between its ends and a controlling valve common to all of said dischargepipes, substantially as specified.

2. A drier, comprising a rotary cylinder, perforated air-distributing pipes extended through said cylinder, discharge-pipes extending through the cylinder-and having openings at about the center, and screens arranged over said discharge-pipes, substantially as specified.

3. A drier, comprising a rotary cylinder, perforated air-distributing pipes arranged in the cylinder, discharge-pipes leading through the cylinder and openings between their ends, screens covering said discharge-pipes, keepers for engaging with one side of the screens, and locking devices for engaging with the other sides of the screens, substantially as specified.

4. A drier, comprising a rotary cylinder, perforated air-pipes leading into the cylinder, means for regulating the inlet of air, dis charge-pipes leading through the cylinder and having openings between the ends, and screens arranged over said discharge-pipes, substantially as specified.

5. A drier, comprising a rotary cylinder, air-distributing pipes arranged in the cylinder, a hollow hub, branches leading from said hub to the air-distributing pipes, regulatingvalves consisting of tubes arranged one within the other within the hub, the said tubes being provided each with a side opening, and discharge-pipes leading through the cylinder,- substantially as specified.

6. A drier, comprising a rotary cylinder, perforated air-distributing pipes arranged in the cylinder, a tubular hub branch connection between said hub and the perforated pipes, a regulating device comprising tubes arranged one within the other and within the hub so as to rotate one relatively to the other, the said tubes being provided with side openings, and means for limiting the movement of one tube relatively to the other, substantially as specified.

7. A drier, comprising a rotary cylinder, perforated air-distributing pipes arranged in the cylinder, outlet-pipes extended through the cylinder, a tubular hub branch connection between said hub and the dischargepipes, and a regulator consisting of a tube arranged to rotate in the hub and having a slot at one side, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN WATERI-IOUSE.

W'itnesses:

J NO. M. RITTER, O. R. FERGUSON. 

